I was talking about the wires from the bridge and neck volumes to the switch. I'm sorry I didn't make myself clear.
But I'm glad you said what you did. It won't make any difference sonically in this project because none of the pickups will be on at the same time, but for future reference, to make a humbucker series and in phase (the normal way- without any mods) you solder the two finishes (red and white) together and not the starts (green and black). If you look at the link above you will notice that you are soldering the two starts together. This will make the pickups out-of-phase with other pickups. But as I said above, since none of the pickups are combined, it will sound the same either way. Hope that made sense